CN1666285A - Playback system with remote control device - Google Patents
Playback system with remote control device Download PDFInfo
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- CN1666285A CN1666285A CN03815083.2A CN03815083A CN1666285A CN 1666285 A CN1666285 A CN 1666285A CN 03815083 A CN03815083 A CN 03815083A CN 1666285 A CN1666285 A CN 1666285A
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/027—Remotely controlled
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/002—Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
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- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
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- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
In a playback system ( 400 ) comprising a meta data generating device ( 430 ) meta data information (MD) is transmitted to a remote control device ( 420 ), which remote control device ( 420 ) is provided for the remote control of a playback device ( 10 ) with the aid of selection information (AI) from the meta data information (MD). The playback device ( 10 ) and the meta data generating device ( 430 ) have a receiving device ( 432, 40 ) for receiving a data carrier, in which a data carrier ( 41 ) can be inserted, which data carrier ( 41 ) contains at least one track, each track being determined by start position information. The meta data generating device ( 430 ) is provided for generating meta data information (MD) which additionally contains the start position information. In the remote control device ( 420 ) is included selection information generating means ( 425 ) for generating selection information (AI) which contains start position information. The playback device ( 10 ) includes a processing means ( 51, 60 ) for processing selection information (AI) which contains start position information, a selection of a track being enabled by means of the selection information (Ai).
Description
Technical field
The present invention relates to a kind of playback system, it comprises the remote control equipment that is used to produce the metadata generation equipment of metadata information and comprises the reproducing device that remote control is used to play, and comprise reproducing device, described metadata generation device comprises the device of definition after this, promptly be used to receive the receiving trap and the metadata generation device that is used to produce the metadata information relevant of data carrier with described data carrier, with the metadata transport device that is used for metadata information is sent to remote control equipment, wherein said remote control equipment comprises the device of definition after this, promptly be used to receive the receiving trap of metadata information, the memory storage that is used for storing metadata information, be used to produce the selection information generating apparatus of selection information, with the transmitting device that is used for selection information is sent to reproducing device, and wherein said reproducing device comprises the device of definition after this, the replay device of the user profile that promptly is used to receive the receiving trap of data carrier and is used for comprising on the played data carrier, be used for receiving the receiving trap of selection information from remote control equipment, and treating apparatus, be used to handle described selection information, the user profile that comprises on the selectable data carrier of described treating apparatus.
The invention still further relates to a kind of metadata generation equipment that is used to produce metadata information, after this described metadata generation equipment comprise the device of definition, promptly be used to receive data carrier receiving trap, be used to produce the metadata generation device of the metadata information relevant and be used for sending described metadata information to a remote control equipment playback system is carried out the metadata transport device of remote control with described data carrier.
The invention further relates to a kind of remote control equipment that is used for a playback system is carried out remote control, after this this remote control equipment comprises the device of definition, promptly be used to receive metadata information receiving trap, be used for the memory storage of storing metadata information, the transmitting device that is used to produce the selection information generating apparatus of selection information and is used for described selection information is sent to described playback system.
The invention still further relates to a kind of playback system, the device that it comprises thereafter definition, promptly be used to receive data carrier receiving trap, be used for the user profile that comprises on the played data carrier replay device, be used for receiving selection information playback system carried out the receiving trap of remote control and to be used to handle the treating apparatus of the user profile that described selection information, described selectable data carrier comprises from telechirics.
Background technology
For example from 2002 in network address
Http:// www.xs4a11.n1/ ~ devet/atwork/i99w4.htmlThe internet on disclosed document " A personal digital assistant as anadvanced remote control for audio/video equipment " can know so a kind of playback system and such system and equipment.This known playback system comprises the metadata generation equipment that is used to produce the metadata information relevant with at least one data carrier, the remote control equipment that is used to play the playback system and a data carrier of user profile and is used for the described playback system of remote control.Described remote control equipment is configured to so-called PDA(Personal Digital Assistant), and make data carrier user data be selected to possibility.Playing audio-fequency data when described playback system is arranged for using a computer program, described computer program are known as " WinampMP3 player " and can handle on personal computer PC.Described PC comprises the user data of a large amount of audio file forms, and described audio file compresses according to 1 layer of III of known MPEG (MP3) method.Described audio file is formed the audio file CD collection of many different pieces of information carriers, and described data carrier is arranged to compact disk CD.Adding the audio file of CD to the CD collection is by carrying out in the receiving trap that CD is inserted into PC, forming described receiving trap by CD-ROM drive.Described audio files storage forms described memory storage by hard disk in the memory storage of PC.If want later on to use audio file, then before their storages, can at first compress them according to described MP3 method with the CD-DA form.
If this audio file is added among such CD in the described audio collection, then in the metadata generation system that described PC comprises from or produce so-called metadata for described audio file.This metadata is to utilize database available on the internet to produce, and the last available Internet connection of PC can conduct interviews to described database.A kind of like this database for example is known as CDDB and can be respectively service or data based on the internet, stores title, explanation, reproduction time of for example many compact disks of metadata or audio frequency CD etc. in such database.CDDB is developed so that on PC the easier CD that detects sample.Its principle is for producing unique identification data block or dish ID or ID respectively by a contents table (TOC), so the contents table of CD, is stored in the described CDDB database together with CD metadata of importing or the additional information that relates to title, explanation etc.Metadata of storing in the CDDB database or additional information are displayed to the user who uses CD or obtain reduction so that they can utilize.
Described metadata is to form by the title of artist/interpreter, collection of records, time and school herein.Be respectively stored in the tabulation or catalogue on the hard disk by the metadata that produces respectively or obtain, and be transmitted to PDA subsequently.This transmission course is undertaken by infrared link IrDA, and wherein said PC and described PDA have infrared transceiver.The tabulation that sends described PDA to is stored among the PDA and also can shows on the display screen of PDA.In addition, can from described tabulation, take out clauses and subclauses, the described clauses and subclauses representative selection information relevant with the expectation audio file of the CD collection that will in described playback system, play.After selecting, the information of described selection can send described PC or display system to by the IrDA connection.In described playback system, utilize the selection information that is received to carry out last selection, subsequently an audio file is reset.
According to described known playback system, selection information is that the title by the selector bar teleological interpretation program of the name of collection of records and described tabulation forms.In most of the cases, these titles have considerable number of characters.Connect the many characters of transmission by IrDA and need the expensive time, therefore can use up the energize of the IrDA connection that is used for the long period section, in order in PDA, to obtain minimum possible energy consumption, this is very disadvantageous, because energy consumption is by the battery supply, thereby higher energy consumption will make PDA have the short operation time limit.
For clearer, or better difference, in the memory storage of described reproducing device, providing so-called index or file structure usually, each audio files storage is in different index.This selection that is stored in the audio file in the index be we can say to be needed to transmit selection information, and it has index information in addition.After this can transmit other character in the IrDA connection, this is disadvantageous.More specifically, the transmission of a large amount of characters is disadvantageous for transmission security, and along with the increase of the number of characters that transmits, therefore the decline that transmission security is strong relatively need expensive safety installations.In addition, if carry out other selection immediately after a selection, the longer transmission number of times of then selecting information also is disadvantageous.
Summary of the invention
The objective of the invention is to eliminate above-mentioned restriction and problem, and provide a kind of in opening paragraph define styles improved playback system and a kind of in second section the improved metadata of define styles produce equipment, with a kind of in the 3rd section the improved remote control equipment of define styles, and a kind of in the 4th section the improved reproducing device of define styles, wherein above-mentioned problem can be avoided.
In order to realize above-mentioned purpose, playback system according to the present invention has according to feature of the present invention, makes that playback system according to the present invention has following feature, promptly
A kind of playback system, have a metadata that is used to produce metadata information and produce equipment, be used for the remote control equipment that remote control reproducing device (10) is play with comprising, and comprise described reproducing device, described metadata generation equipment comprises following device, promptly be used to receive the receiving trap and the metadata generation device that is used to produce the metadata information relevant of a data carrier with described data carrier, with the metadata conveyer that is used for described metadata information is sent to remote control equipment, and described remote control equipment comprises the receiving trap that is used to receive described metadata information, be used to store the memory storage of described metadata information, be used to produce the selection information generating apparatus of selection information, with the conveyer that is used for described selection information is sent to reproducing device, and described reproducing device comprises the device of definition after this, the replay device that promptly is used to receive the receiving trap of data carrier and is used to play the user profile that comprises on the described data carrier, be used for receiving the receiving trap of selection information from remote control equipment, and treating apparatus, be used to handle described selection information, the user profile that comprises on the data carrier that can select by described treating apparatus, the data carrier that it is characterized in that being inserted in the described receiving trap comprises at least one track, each track is determined by start position information, and described metadata generation device is arranged for producing the metadata information that comprises described start position information extraly, described selection information generating apparatus is arranged for producing the selection information that comprises start position information, and described treating apparatus is arranged for handling the selection information that comprises start position information, by above measure, make the described selection information that comprises the track start position information become possibility.
To achieve these goals, metadata generation equipment according to the present invention has according to characteristic feature of the present invention, makes that producing equipment according to metadata of the present invention can have the described feature of following mode, that is:
A kind of metadata generation equipment that is used to produce metadata information, this metadata generation equipment comprises the device that defines below, promptly be used to receive the receiving trap and the metadata generation device that is used to produce the metadata information relevant of a data carrier with described data carrier, with being used for described metadata information is sent to the metadata transport device that is used for reproducing device is carried out the remote control equipment of remote control, the data carrier that it is characterized in that being inserted in the receiving trap comprises at least one track, each track is determined by start position information, and described metadata generation device is arranged for producing the metadata information that comprises described start position information extraly.
To achieve these goals, remote control equipment according to the present invention has according to characteristic feature of the present invention, make and to have the described feature of following mode according to remote control equipment of the present invention, that is: a kind of remote control equipment that is used for the remote control reproducing device, this remote control equipment comprises the device that defines below, promptly be used to receive the receiving trap of metadata information, with the memory storage that is used to store described metadata information, and the selection information generating apparatus that is used to produce selection information, with the conveyer that is used for described selection information is sent to reproducing device, it is characterized in that described metadata information also comprises the start position information of the track of a data carrier in addition, described selection information generating apparatus is arranged for producing the selection information that comprises start position information.
To achieve these goals, reproducing device according to the present invention has according to characteristic feature of the present invention, makes can have the described feature of following mode according to reproducing device of the present invention, that is:
A kind of reproducing device, comprise the device that defines below, the replay device of the user profile that promptly is used to receive the receiving trap of a data carrier and is used for occurring on the played data carrier, with the receiving trap that is used for receiving selection information from the remote control equipment that reproducing device is carried out remote control, and be used to handle described selection information processing device, the described user profile that appears on the data carrier can be selected, the data carrier that it is characterized in that being inserted in the receiving trap comprises at least one track, each track is determined by start position information, and described treating apparatus is arranged for handling the selection information that comprises start position information, can make one's options to track by the selection information that comprises start position information.
When providing according to characteristic feature of the present invention, just obtained a kind of improved playback system that is used to play the user data of a data carrier, wherein said user data is that the track by file forms.One is improved to such fact significantly: selection information comprises start position information, and described selection information can exchange to a reproducing device from a remote control equipment, to be used for described track or file is selected or subsequently playback.Because being the character by seldom, described start position information forms, so exchange or the transmission of character from the remote control equipment to the reproducing device only kept of short duration moment, this is very favorable in order to produce minimum possible energy consumption in remote control equipment, because the energy consumption in the remote control equipment is advantageously provided by battery.
An advantage in addition is by using described start position information, then can not depend on the index structure of described data carrier.
If provide according to claim 4,10,15 and 18 feature, then the present invention confirms it is very favorable.They make might select many mutually different data carriers.
By providing respectively as claim 5 or claim 11 or the described feature of claim 19, can obtain such advantage, promptly can make safer identification for a large amount of mutually different data carriers.
In addition, by providing as claim 6 or claim 12 or the described feature of claim 20, can obtain such advantage, the data carrier that promptly has the track of include file can be selected, simultaneously for the track that only has lesser amt but the identification with data carrier of a lot of files has very high reliability.
By providing as claim 7,13,16 and 21 described characteristic features, can obtain such advantage, promptly can form simple and unique start position information.
By characteristic feature as claimed in claim 8 is provided, can obtain such advantage especially, promptly can transmit simple selection information according to the infrared transmission means of RC6 standard by extensive use.
By characteristic feature as claimed in claim 2 is provided, can obtain such advantage, the receiving trap that promptly is used to receive data carrier can produce equipment and reproducing device uses jointly with metadata.
By characteristic feature as claimed in claim 3 is provided, can obtain such advantage, promptly can produce the conveyer that is used to transmit metadata information in simple mode by the conductivity link, this conductivity link is particularly conducive to the energy consumption that reduces remote control equipment.
Above-mentioned aspect of the present invention and the further specific embodiment of aspect by explanation after this but conspicuous, and with reference to such specific embodiment they are described.
These and other aspect of the present invention will be conspicuous by the embodiment of explanation after this, and be described with reference to such embodiment.
Description of drawings
In the accompanying drawings:
Fig. 1 shows the necessary part of current annexation of the device of one embodiment of the invention with the form of highly signal by block scheme;
Fig. 2 represents to relate to the process flow diagram that divides home block from the start position information item generating unit of track and/or file;
Fig. 3 relates to the process flow diagram that divides home block from the filename generating unit;
Fig. 4 is a frame circuit diagram, and its form with highly signal represents to utilize the playback system of the user data on identification data block and/or the track/file identification data block selection data carrier.
Embodiment
Fig. 1 represents to be used to produce the device of identification data block, and this device has the form of the reproducing device 10 that is used to play a plurality of data carriers.Described reproducing device 10 comprises the receiving trap that is used to receive data carrier, this receiving trap is formed by changer module 40, described changer module 40 is used to and arrangement is used for playing with digital form canned data or data, the information of described stored digital is stored on the data carrier 41, and described data carrier can read and rotates with angular velocity omega by optical mode.Under existing conditions, optically readable data carrier 41 is formed by compact disk (CD), and each data carrier by one more converting mechanism all can arrive play position in the described changer module 40.The information of stored digital is stored on the track of data carrier 41 according to the CD-ROM standard.By the way, described CD also can be CD-R or CD-RW type.Can read with pre-service by scanister 42 and to be stored in information or data on the described optically readable data carrier 41 with digital form, described scanister 42 comprises an addressable light reading unit and an associated Positioning Control Unit.Be read out with pretreated data and be transmitted to central control unit (CPU) 50.
CPU (central processing unit) (CPU) 50 has the form of microprocessor, and is connected with nonvolatile memory ROM 20 and volatile memory 21, and described ROM 20 and RAM 21 are designed and arrange to be used for known purpose.Reproducing device 10 also comprises input media 11, and this input media 11 is formed by the lip-deep key that is installed in reproducing device 10, and it is connected to described central control unit (CPU) 50 and is arranged for user's input control information by reproducing device 10.Be included in the reproducing device 10 in addition and be connected with central control unit (CPU) 50 also have a remotely monitored sensor 13, it is arranged with according to RC 6 standard receiving infrared-ray remote signals.Described reproducing device 10 also comprises the display device 12 that is used for videotex and/or image information.Display device 12 is the LCD matrix display under existing conditions, and it is installed on the surface of reproducing device 10.What should be mentioned in that is: equally also can constitute this display device 12 well by VFD display or other similar display.
Be included in the reproducing device 10 in addition and the amplifier module that also is useful on the amplified analog audio signal 30 that is connected with central control unit (CPU) 50, the sound signal of being amplified is sent to amplifier out 31.What be connected with amplifier out is the audio playing apparatus 32 that occurs with the loudspeaker form, and described loudspeaker is arranged for playing the simulated audio signal of amplification.
Central control unit (CPU) 50 comprises a series of devices and the module of listing below and can conduct interviews to RAM 21.What this mode comprised is: be connected with changer module 40 and be used to control the CD module control unit 51 of changer module 40 and definite start position information item and filename.What be connected with CD module control unit 51 is first generation device 54, second generation device 55, the 3rd generation device 56, the 4th generation device 57 and the 5th generation device 58, and described generation device 54 to 58 is arranged for producing the part home block that the back will detailed process.Described generation device 54 to 58 is connected with strobe unit 59, and described strobe unit is designed and arrangement is used for producing an identification data block from described part home block.What be connected with CD module control unit 51 with described strobe unit 59 is comparator device 60, and it is arranged to identification data block and selects item of information to compare.Central control unit (CPU) 50 also comprises display drive apparatus 51, can be display equipment 12 by this device and produces expression text and/or data of image information.Central control unit (CPU) 50 also comprises audio data decoding apparatus 52, and it is connected with changer module 40 and is used for decoded audio signal.The voice data of decoding is transmitted to D/A transducer 53, and this D/A transducer 53 is produced a simulated audio signal and sent it to amplifier module 30 by the voice data of decoding.
As has been described, changer module 40 is used to and arrangement is used to play a plurality of CD, and described in the present embodiment recorder changer is 5 dish recorder changers.Described reproducing device 10 and favourable feature thereof make that the CD that comprises in the changer module 40 can be selected and play, just, and on the basis of the identification data block that is produced.To describe described selection after a while in detail handles.
To describe the process that produces identification data block by the part home block below in detail, in this case at first with reference to the brass tacks of schematic CD explanation about storage data and start position information item.
Utilize described CD module control unit 51, content information, promptly so-called contents table (TOC) is read by the described schematic CD from the play position that is arranged in described changer module 40, and the data that obtain are stored among the RAM 21.Comprise data to arrange with the corresponding to mode of CD-ROM standard from its schematic CD that reads, as shown in table 1.
| ??CD | Title | ??LBA | Size (byte) |
| Section 1 track 01 section 2 tracks 02 ISO 010305_1421 010305_1421 | Section 1 track 01 section 2 tracks 02 GUNS ' N ~ 7.MP3 GUNS ' N ' ROSES-DON ' T CRY.MP3 | ??0 ??0 ??13688 ??13688 ??13713 ??13712 | ???4685824 ???5381376 ???927744 ???927744 ???417042 ???417042 |
Table 1
Therefore described schematic CD comprises section 1 with audio track 01 and the section 2 with data track 02.Data track 02 comprises the file system of ISO 9660 forms and has the file of filename " GUNS ' N ' ROSES-DON ' T CRY.MP3 ", and this document comprises the voice data according to 1 layer of III of known MPEG (MP3) standard compression.What should be mentioned in that is the file system that data track also can comprise different-format of equal valuely, similar for example JOLIET form.
Title is shown in the row of LBA to be so-called LBA (Logical Block Addressing), and this LBA (Logical Block Addressing) has defined track and file start time, just about the item of information of the starting position (skew) of track and file.Described LBA (Logical Block Addressing) is with respect to the start time of absolute first track on the CD and appointed.Under the situation of present data track, by definition, 2048 bytes are equivalent to a logical block of data track.Under the situation of audio track, 2352 bytes are equivalent to a logical block of audio track, the so-called raw data of 2048 byte representations wherein, and remaining byte comprises correction data and frame information data.According to the CD-ROM standard, the start time of track and so-called derivation (lead-out) LO can determine from the TOC data or from the temporal information that is stored on the subcode channel Q.This deterministic process is carried out in CD module control unit 51, and temporal information provides in the mode of frame, and wherein 75 frames equal one second.For above-mentioned quote schematic CD obtained is a track 01=150 frame, a track 02=13838 frame is derived=14291 frames.Derive herein and mean that the derivation of last section finishes.For the schematic CD that quotes, provide the exact relationship table 2 below between the start time of described TOC and LBA (Logical Block Addressing) LBA acquisition.
| Sector sizes [sector byte] | The S1 audio frequency | The S2 numeral | |||||||
| ?4685824 | ?????927744 | ||||||||
| TOC begins [frame] | Lin1 | ?Gap1 | Track 01 | ??Lout1 | ??Lin1 | ??Gap2 | Track 02 | Lout2 | |
| - | ?- | ?150 | ??- | ??- | ??- | ?????13838 | 14291 | ||
| Block size [difference] | LI-S1 | ?Gap1 | Track 01 | ??LO-S1 | ??LI- ??S2 | ??Gap2 | Track 02 | LO-S2 | |
| 1 minute | 150 frames | 5381376 user octets | 1.5 minute | 1 minute | 150 frames | 927744 sector bytes | 1.5 minute | ||
| File size [difference] | File system | File 2 | |||||||
| 25 frames | 41,704 2 sector bytes | ||||||||
| Beginning [LBA] | - | ?- | ?0 | ??2288 | ??9038 | ??1353 ??8 | ?13688 | 3713 | 4141 |
Table 2
In table 2, LI-S1 and LI-S2 represent the import information of section S1 and S2 respectively, and Gap1 and Gap2 represent that each track is track 01 and 02 beginning idle gap before.
Under described situation,, use five (5) individual part home blocks to produce or form described identification data block by the XOR gating of the part home block that in strobe unit 59, carries out.Illustrated in the table 3 below and be used for the scheme (layout) of gating with the part home block that forms described identification data block ID.
| Part-ID3 (filename XOR (XOR)) | ||||
| ??XOR | Part-ID1 (track and file start time XOR) | |||
| ??XOR ??XOR | Part-ID5 (total reproduction time of CD) | |||
| Part-ID4 (number of files) | ||||
| ??XOR | Part-ID2 (track number) | |||
| ??ID | ||||
Table 3
In this case, described identification data block ID comprises and corresponding four (4) bytes of the piece shown in the table 3, from right to left described each piece is numbered.
Fig. 2 represents by described first generation device 54 and CD module control unit 51 from track or file start position information, i.e. the LBA generating unit of the start time of track or the file order of dividing home block ID1.Below described order is called the Part-ID1 sequence.Repeat the Part-ID1 sequence and from initial block 200, wherein the Part-ID1 variable is set to 0x0 in RAM 21 for a plurality of tracks on the relevant CD.So, according to frame 205, whether the last track on the inquiry CD is read.If read, then branch proceeds to frame 210; If no, then described sequence proceeds to frame 215.According to frame 215, read next track, described then sequence proceeds to frame 225.What the reading in of next track represented under this situation is determining of start position information.According to frame 225, use Part-ID1 to carry out determining or the XOR gating of the start information item that reads.Whether the track that 230 inquiries are read according to frame is the data track of audio track or include file then.If audio track, then the Part-ID1 sequence proceeds to frame 205.On the other hand, if data track, then described sequence proceeds to frame 235.According to frame 235, check whether the final act on the data track is read.If read, then described part-ID1 sequence proceeds to frame 205 once more.If last file also is not read, then described sequence proceeds to frame 240, reads next file at this.Equally in this case, reading of next file represented determining of described start position information.After the frame 240, so according to frame 245, will use the part-ID1 that is stored among the RAM 21 to determine or the exclusive-OR gating of the start position information item that reads, described thereafter part-ID1 sequence proceeds to frame 235.Under the situation of above-mentioned schematic CD be for what part-ID1 obtained
Part-ID1=TOC (track 01) XOR TOC (track 02) XOR LBA (file 2)
＝150?XOR?13838?XOR?13713＝
0x309
At last, produced or definite part-ID1, made part-ID1 be displaced to second byte location in the identification data block by the value of multiply by 0x100, so described part-ID1 sequence finishes at frame 220 according to frame 210.
Fig. 3 represents the sequence of dividing home block ID3 from the filename generating unit by described the 3rd generation device 56 and described CD module control unit 51.This sequence also is known as the part-ID3 sequence below.Described part-ID3 sequence repeats to read in to track and document definition by described CD module control unit 51 once more, and it starts from beginning frame 300, is set to 0x0 comprising the part-ID3 variable of four (4) bytes in RAM 21.Then, according to frame 305, inquire whether the last track on the described CD is read.If read, then branch proceeds to frame 310; If also do not have, then described sequence proceeds to frame 315.According to frame 315, read next track, so whether the track that 320 inquiries are read according to frame is the data track of audio track or include file.If audio track, then described part-ID3 sequence proceeds to frame 305.On the other hand, if data track, then described sequence proceeds to frame 325.According to frame 325, check whether the final act in the described data track is read.If read, then described part-ID3 proceeds to frame 305 once more.If final act also is not read, then described sequence proceeds to frame 330.According to frame 330, read the filename of next file, described then sequence proceeds to frame 335.According to frame 335, carry out exclusive-OR gating and finally form part-ID3 by character, thereby generation has the part-ID3 of the byte of similar number filename.Under existing conditions, the Character segmentation in the filename is become piece, be divided into piece part each all comprise four (4) individual characters, in piece, obtain four (4) individual character positions in this case, each character position is represented a byte.In each piece the character on each character position in described is carried out exclusive-OR gating, for example character one (1), five (5), nine (9) etc. is by gating and form first byte of part-ID1.Characters two (2), six (6), ten (10) etc. form second byte of part-ID1.In being divided into the process of piece, be set to zero (0) owing to cut apart the idle character position of generation in character of losing or the last piece.Under the situation of above-mentioned schematic CD be for what part-ID3 obtained:
Part-ID3The 4 byte XORs of=" GUNS ' N ' ROSES-DON ' T CRY.MP3 "=
0x1244530951
Obtain part home block part-ID2 by described second generation device 55 and described CD module control unit 51, part-ID2 represents the total number of tracks on the CD.
Obtain part home block part-ID4 by described the 4th generation device 57 and described CD module control unit 51, part-ID4 represents the total number of files on the CD.Can easily determine total number of tracks from the TOC that reads.Can determine total number of files from the file system first 25 frame that is stored in data track.Under the situation of above-mentioned schematic CD, that obtain for part-ID2 is 0x1, and that obtain for part-ID4 is 0x2.As shown in table 3, part-ID2 is set at byte position in described identification data block, and it is two (2) bytes that part-ID4 is expanded.
Represented as present decline home block, determine that by described the 5th generation device 58 and described CD module control unit 51 part-ID5, the purpose of part-ID2 are the variations that advantageously strengthens described identification data block.Part-ID5 represents the total length of CD in this case.The LBA and the size of the last complete section from the CD are determined described total length.Under the situation of above-mentioned schematic CD be for what part-ID5 obtained:
Part-ID5=LBA (track 02)+Size (track 02)/2048 (byte/logical block)
＝13688+927744/2048＝
0x373d
Under the situation of above-mentioned schematic CD, utilize 59 pairs of part home blocks of strobe unit part-ID1 to part-ID5 to carry out gating and produce an identification data block or a dish
ID=0x1210922811
As already mentioned, described reproducing device 10 is arranged to utilize changer module 40 to play a plurality of data carriers 41, is a plurality of CD under described situation promptly, thereby produces so-called jukebox or music box.In addition as already mentioned, described CD has comprised the so-called MP3 CD of a plurality of mp3 files (being compacted voice file) respectively.Under the described situation that five (5) individual MP3 CD are arranged, have 1,000 (1000) the individual mp3 files of total, for the purpose of resetting easily be selected described mp3 file.
Can easily select the playback system 400 of mp3 file for this for the ease of playing described mp3 file shown in Fig. 4.This playback system 400 comprises that metadata produces equipment 430, remote control equipment 420 and reproducing device 10.This reproducing device 10 has identical design with the reproducing device 10 shown in Fig. 1.
It is computing machine 431 in form that described metadata produces equipment 430, and described computing machine 431 is arranged the computer software product that is used to produce the metadata information relevant with at least one data carrier with operation.This computing machine 431 comprises the receiving trap 432 that is used to receive a data carrier, and this described receiving trap 432 is connected with metadata generation device 433.Described metadata generation device 433 is arranged to produce and sends metadata MD to transmitting device 434, and this transmitting device 434 is arranged for sending the metadata KMD of coding.Form receiving trap 432 by the CD-ROM drive that belongs to computing machine 431 under existing conditions, it is consistent with the changer module 40 of reproducing device 10 basically, though it can only once receive a received single data carrier of energy.Those modules and the device that have described above described metadata generation device 433 comprises with reference to Fig. 1, and can be data carrier by these modules and device and produce identification data block ID.These modules and device are: CD module control unit 51, generation device 54,55,56,57 and 58 and strobe unit 59.
From top data carrier in conjunction with the type that Fig. 1 introduced, described data carrier is inserted in the described receiving trap 432, produces metadata under the help of the TOC that reads from described data carrier.For each track or the file that write down on the described data carrier, described metadata comprises following data: title, name of interpreter, album names, school and track/file identification data block (FID) and the identification data block (dish ID) that is used for data carrier.Form described track/file identification data block FID by starting position (skew) information with reference to described track or data file.For track, it is can be from the temporal information of TOC acquisition.For data file, it is the temporal information that comprises the track of data file, and from the LBA (Logical Block Addressing) LBA of described data file determine with respect to the temporal information item of the LBA (Logical Block Addressing) LBA of described track and.With chronomere hour, minute, second and frame is that unit calculates or the fixed time item of information, and one (1) byte is used to each chronomere, hour occupies to be positioned at the byte that highest significant position is put, and frame is to be positioned at the byte that least significant bit (LSB) is put.Under the situation of above-mentioned schematic CD be for described track/the file identification data block is resulting:
FID (track 01)=TOC (track 01)=150 frames=00:00:02:00[hh:mm:ss:ff]=
0x200
FID (file 02)=TOC (track 02)+(LBA (file 02)-LBA (track 02))
=13838+ (13713-13688)=13863 frames=00:03:04:63[hh:mm:ss:ff]=0x30463
Should be mentioned in that in described metadata generation equipment 430 to have memory storage to occur, and this memory storage is connected with described metadata generation device 433 and is arranged for storing metadata MD.This memory storage can form by the hard disk of computing machine 431.
Described in this case remote control equipment 420 is to form with the form of so-called PDA(Personal Digital Assistant).Remote control equipment 420 has a central control unit 422, its be form with the form of microprocessor and be coupled to a nonvolatile memory ROM 424 and a volatile memory RAM 423, this ROM 424 and RAM 423 are designed and arrange to be used for known purpose.
What be connected with central control unit 422 is to be arranged with the receiving trap 421, the memory storage 427 that is arranged for storing metadata MD that receive the decode the metadata KMD that has encoded, to be arranged for the display device 426 of display element data M D and to be used to import the input media 428 of input information.Under existing conditions, form display device 426 and input media 428 by the composite set that adopts LCD touch-screen form.In this case, described LCD touch-screen is according to the work of resistance principle, and it can produce input information by contact pilotage or similar device on the surface of LCD touch-screen.What should be mentioned in that is also can provide other input media equivalently, similar for example keyboard or speech input device.
In central control unit 422, include metadata treating apparatus 429, can the metadata MD that be received by receiving trap 421 be handled and it is stored in the memory storage 427 by it.In addition, also wrap in the CPU (central processing unit) 422, drawn together and selected information generating apparatus 425, this selects information generating apparatus 425 to allow display element data M D on display device 426, and described selection information generating apparatus 425 is arranged for can producing selection item of information AI under the help of input media 428.Described selection item of information AI can send to conveyer 440, and this conveyer 440 is connected with central control unit 422.Described conveyer 440 is arranged to send coding selection information KAI, and described in this case coding selection information KAI is by meeting the RC6 standard, and the infrared signal of the RC6 pattern 1A-serial type 3 that promptly just is being used forms.This coding selection information KAI can be sent to the receiving trap of described reproducing device 10, this receiving trap is used to receive selection information and forms by remotely monitored sensor 13.
Metadata MD is stored in the memory storage 427 of remote control equipment as the list of meta data that comprises list of entries, and described list of entries is by particular track or file on each group metadata representation element data carrier.Should also be mentioned that: can provide can management of metadata the device of tabulation, just can add or the device of delete columns table clause.
Under the help of described selection information generating apparatus 425, metadata MD can be shown, described list of meta data can show with various views, this expression can be according to certain standard storage and display list clauses and subclauses, the similar name of interpreter of for example passing through, by title, by school or the standard by other kind.Selected a list of entries if utilize input media, then for this list of entries, find relevant identification data block (dish ID) and track/file identification data block (FID), and send them to described reproducing device 10 as selection information by conveyer 440.
In reproducing device 10, the selection information of reception is processed, because whether the identification data block that the data carrier in the changer module 40 of having utilized comparator device 60 is after testing found out is complementary with the identification data block that obtains from the selection information A I that receives.If there is coupling; then track/file identification data block the FID that receives with described identification data block is transmitted to CD module control unit 51; in CD module control unit 51, track or file on that data carrier are play, the identification data block of coupling is arranged on its described data carrier.In replay mode, the voice data of coding is transmitted to audio data decoding apparatus 52 under existing conditions.
If do not have the identification data block ID of coupling, then notify such fact by the display on the display device 12.What can mention is to notify also to be transferred into remote control equipment 420, and so in this case, reproducing device 10 will have the conveyer that is used to transmit this message.What can also mention is: reproducing device 10 can use above-mentioned conveyer will send remote control equipment 10 as the identification data block ID that the data carrier that comprises in the changer module 40 produces to.In this incident, remote control equipment 10 is arranged for receiving and handling this kind identification data block ID, and in this case, the list of meta data of demonstration can include only those list of entries with identification data block of coupling.
What can also mention is: playback system 400 can be arranged for producing and handling so-called playlist.
Claims (21)
1. a playback system (400), comprise that a metadata that is used to produce metadata information (MD) produces equipment (430) and comprises and be used for the remote control equipment (420) that remote control reproducing device (10) is play, and comprise described reproducing device (10), described metadata produces equipment (430) and comprises the device of definition after this, promptly be used to receive the receiving trap (432) and the metadata generation device (433) that is used for producing the metadata information (MD) relevant of data carrier (41) with described data carrier (41), with the metadata conveyer (434) that is used for described metadata information (MD) is sent to remote control equipment (420), and wherein remote control equipment (420) comprises the device of definition after this, promptly be used to receive the receiving trap (421) of described metadata information (MD), be used to store the memory storage (427) of described metadata information (MD), be used to produce the selection information generating apparatus (425) of selection information (AI), with the conveyer (440) that is used for described selection information is sent to reproducing device (10), and wherein said reproducing device (10) comprises the device of definition after this, the replay device (51 of the user profile that promptly is used to receive the receiving trap (40) of data carrier (41) and is used for comprising on the played data carrier (41), 52,53), be used for receiving the receiving trap (13) of selection information (AI) from remote control equipment (420), and be used for by treating apparatus (51,60) selectable processing selecting information (AI), the treating apparatus (51 of the user profile that comprises on the data carrier (41), 60), it is characterized in that to be inserted into receiving trap (432,40) data carrier in (41) comprises at least one track, each track is determined by start position information, and described metadata generation device (433) is arranged for producing the metadata information (MD) that additionally comprises described start position information, described selection information generating apparatus (425) is arranged for producing the selection information (AI) that comprises start position information, and described treating apparatus (51,60) be arranged for handling the selection information (AI) that comprises start position information, under the help of the described selection information (AI) that comprises start position information, can select track.
2. playback system as claimed in claim 1 (400) is characterized in that described metadata produces equipment (430) and described reproducing device (10) is included in the unit equipment.
3. playback system as claimed in claim 1 (400) is characterized in that described metadata produces equipment (430) and described remote control equipment (420) is included in the unit equipment.
4. as claim 1 or 2 or 3 described playback systems, it is characterized in that described selection information (AI) also comprises an identification data block except start position information, can form described identification data block for the data carrier (41) that is inserted in the described receiving trap (432).
5. playback system as claimed in claim 4 (400) is characterized in that in order to produce described identification data block, produces in the equipment (430) and/or comprise array apparatus down in described reproducing device (10) in described metadata, that is:
Be used for determining described start position information definite device (51) and by the gate unit home block produce identification data block strobe unit (59) and
Be used for by described start position information produce first's home block first generation device (54) and
Be used for producing second generation device (55) of second portion home block by the sum of the track of described data carrier (41),
Wherein said first generation device (54) is arranged for producing described first home block by exclusive-OR gating, and wherein said strobe unit (59) is arranged for producing described identification data block by the XOR function.
6. playback system as claimed in claim 5 (400) is characterized in that also being provided with the 3rd generation device (56), and its filename that is arranged for the file that comprises in the track by described data carrier (41) produces the third part home block.
7. as claim 1,2 or 3 or 4 described playback systems (400), it is characterized in that forming described selection information (AI) by the start position information item, described start position information be by with hour, the temporal information represented of minute, second and frame determines.
8. playback system as claimed in claim 7 (400) is characterized in that described selection information (AI) is set to have the track identification data block of nybble, described each byte have with hour, the temporal information separately represented of minute, second and frame.
9. a metadata that is used to produce metadata information (MD) produces equipment (430), this metadata produces equipment (430) and comprises the device that defines below, promptly be used to receive the receiving trap (432) and the metadata generation device (433) that is used for producing the metadata information (MD) relevant of data carrier (41) with described data carrier (41), with being used for described metadata information (MD) is sent to the metadata conveyer (434) that is used for reproducing device (10) is carried out the remote control equipment (420) of remote control, the data carrier (41) that it is characterized in that being inserted in the receiving trap (432) comprises at least one track, each track is determined by start position information, and described metadata generation device (433) is arranged for producing the metadata information (MD) that additionally comprises described start position information.
10. produce equipment (430) as metadata as described in the claim 9, it is characterized in that described metadata information (MD) also comprises an identification data block except start position information, can form described identification data block for the data carrier (41) that is inserted in the described receiving trap (432).
11. metadata as claimed in claim 10 produces equipment (430), it is characterized in that comprising the device of following definition, that is: in order to produce described identification data block
Be used for determining described start position information definite device (51) and by the gate unit home block produce identification data block strobe unit (59) and
Be used for from described start position information produce first's home block first generation device (54) and
Be used for producing second generation device (55) of second portion home block from the sum of the track of described data carrier (41),
Described first generation device (54) is arranged for producing described first home block by the XOR gate gating, and
Described strobe unit (59) is arranged for producing described identification data block by the XOR function.
12. metadata as claimed in claim 11 produces equipment (430), it is characterized in that also being equipped with the 3rd generation device (56), its filename that is arranged for the file that comprises in the track by described data carrier (41) produces the third part home block.
13. produce equipment (430) as claim 9 or 10 or 12 described metadata, it is characterized in that by with hour, the temporal information represented of minute, second and frame determines described start position information.
14. a remote control equipment (420) that is used for remote control reproducing device (10), this remote control equipment (420) comprises the device that defines below, promptly
Be used to receive the receiving trap (421) of metadata information (MD), with the memory storage that is used to store described metadata information (MD) (427), and the selection information generating apparatus (425) that is used to produce selection information (AI), with the conveyer (440) that is used for described selection information (AI) is sent to reproducing device (10), it is characterized in that described metadata information (MD) also comprises the start position information of the track of data carrier (41) in addition, described selection information generating apparatus is arranged for producing the selection information (AI) that comprises start position information.
15. remote control equipment as claimed in claim 14 (420), it is characterized in that described metadata information (MD) and described selection information (AI) also comprise identification data block except described start position information, can be a data carrier (41) and form described identification data block.
16. as claim 14 or 15 described remote control equipments (420), it is characterized in that forming described selection information (AI) by start position information, described start position information be by with hour, the temporal information represented of minute, second and frame determines.
17. a reproducing device (10) comprises the device that defines below, promptly
Be used to receive the receiving trap (40) of data carrier (41) and be used for the replay device (51 that played data carrier (41) is gone up the user profile that occurs, 52,53), with the receiving trap (13) that is used for receiving selection information (AI) from the remote control equipment (420) that reproducing device (10) is carried out remote control, and the treating apparatus (51 that is used to handle described selection information (AI), 60), the described user profile that appears on the data carrier (41) can be selected, the data carrier (41) that it is characterized in that being inserted in the receiving trap (40) comprises at least one track, each track is determined by start position information, and described treating apparatus (51,60) be arranged for handling the selection information (AI) that comprises start position information, can make one's options to track by the selection information that comprises start position information.
18. reproducing device as claimed in claim 17 (10), it is characterized in that described selection information (AI) also comprises identification data block except start position information, can form described identification data block for the data carrier (41) that is inserted in the described receiving trap (40).
19. reproducing device as claimed in claim 18 (10) is characterized in that comprising the device of following definition, that is: in order to produce described identification data block
Be used for determining described start position information definite device (51) and by the gate unit home block produce identification data block strobe unit (59) and
Be used for from described start position information produce first's home block first generation device (54) and
Be used for producing second generation device (55) of second portion home block from the sum of the track of described data carrier (41),
Described first generation device (54) is arranged for producing described first home block by NOR gate circuit, and described strobe unit (59) is arranged for producing described identification data block by the XOR function.
20. reproducing device as claimed in claim 19 (10) is characterized in that also being equipped with the 3rd generation device (56), its filename that is arranged for the file that comprises in the track by described data carrier (41) produces the third part home block.
21. as claim 17,18 or 20 described reproducing devices (10), it is characterized in that forming described selection information (AI) by start position information, described start position information be by with hour, the temporal information represented of minute, second and frame determines.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02100766.1 | 2002-06-28 | ||
| EP02100766 | 2002-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1666285A true CN1666285A (en) | 2005-09-07 |
Family
ID=29797285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03815083.2A Pending CN1666285A (en) | 2002-06-28 | 2003-06-20 | Playback system with remote control device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20060156334A1 (en) |
| EP (1) | EP1520274A2 (en) |
| JP (1) | JP2005531867A (en) |
| CN (1) | CN1666285A (en) |
| AU (1) | AU2003242922A1 (en) |
| WO (1) | WO2004004349A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594099A (en) * | 2012-08-14 | 2014-02-19 | 建兴电子科技股份有限公司 | External CD module with USB interface and operation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006003614A2 (en) * | 2004-06-30 | 2006-01-12 | Koninklijke Philips Electronics N.V. | Method and device for generating an identification data block for a data carrier |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5408642A (en) * | 1991-05-24 | 1995-04-18 | Symantec Corporation | Method for recovery of a computer program infected by a computer virus |
| US5751672A (en) * | 1995-07-26 | 1998-05-12 | Sony Corporation | Compact disc changer utilizing disc database |
| JP4147689B2 (en) * | 1999-06-14 | 2008-09-10 | ソニー株式会社 | Information processing apparatus and information processing method |
| JP4403331B2 (en) * | 2000-02-22 | 2010-01-27 | ソニー株式会社 | Electronic equipment system, information processing equipment |
| WO2001086655A1 (en) * | 2000-02-23 | 2001-11-15 | Havin Co., Ltd. | Apparatus and method for recording digital audio data file |
-
2003
- 2003-06-20 CN CN03815083.2A patent/CN1666285A/en active Pending
- 2003-06-20 AU AU2003242922A patent/AU2003242922A1/en not_active Abandoned
- 2003-06-20 US US10/518,833 patent/US20060156334A1/en not_active Abandoned
- 2003-06-20 WO PCT/IB2003/002824 patent/WO2004004349A2/en not_active Application Discontinuation
- 2003-06-20 EP EP03761732A patent/EP1520274A2/en not_active Withdrawn
- 2003-06-20 JP JP2004517126A patent/JP2005531867A/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594099A (en) * | 2012-08-14 | 2014-02-19 | 建兴电子科技股份有限公司 | External CD module with USB interface and operation method thereof |
| CN103594099B (en) * | 2012-08-14 | 2017-03-15 | 光宝电子(广州)有限公司 | There is the external CD module and its operational approach of USB interface |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003242922A1 (en) | 2004-01-19 |
| EP1520274A2 (en) | 2005-04-06 |
| JP2005531867A (en) | 2005-10-20 |
| US20060156334A1 (en) | 2006-07-13 |
| WO2004004349A2 (en) | 2004-01-08 |
| WO2004004349A3 (en) | 2004-03-11 |
| AU2003242922A8 (en) | 2004-01-19 |
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